77 lines
1.6 KiB
TypeScript
77 lines
1.6 KiB
TypeScript
'use strict';
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import Jimp from 'jimp';
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interface RGBA {
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r : number;
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g : number;
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b : number;
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a : number;
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}
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export default class Frame {
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static async info (imagePath : string) {
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let image : any;
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try {
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image = await Jimp.read(imagePath);
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} catch (err) {
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throw err;
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}
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return {
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width : image.bitmap.width,
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height : image.bitmap.height
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};
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}
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static async solidColor (width : number, height : number, color : RGBA) {
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//@ts-ignore
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const colorInt : string = Jimp.rgbaToInt(color.r, color.g, color.b, color.a);
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return new Promise((resolve : Function, reject : Function) => {
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return new Jimp(width, height, colorInt, (err, image) => {
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if (err) {
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return reject(err)
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}
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return resolve(image);
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});
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});
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}
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static async blend (inPath : any, color : RGBA, imagePath : string) {
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//cmd2 = `${this.convert} "${tmpoutput}" -resize ${w}x${h} -size ${w}x${h} xc:"rgb(${rgb[0]},${rgb[1]},${rgb[2]})" +swap -compose Darken -composite "${tmpoutput}"`;
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const options : any = {
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mode: Jimp.BLEND_DARKEN,
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opacitySource: 1.0,
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opacityDest: 1.0
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};
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let width : number;
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let height : number;
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let bottom : any;
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let top : any;
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try {
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top = await Jimp.read(inPath);
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} catch (err) {
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throw err;
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}
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width = top.bitmap.width;
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height = top.bitmap.height;
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try {
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bottom = await Frame.solidColor(width, height, color);
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} catch (err) {
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throw err;
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}
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bottom.composite(top, 0, 0, options);
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try {
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await bottom.writeAsync(imagePath);
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} catch (err) {
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throw err;
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}
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return imagePath;
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}
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}
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module.exports = Frame |